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run code in 300+ PHP versions simultaneously
<?php class Foo {} $a = new Foo(); $a->x = 1; $a->y = 2; $b = new Foo(); $b->y = 2; $b->x = 1; var_dump( serialize($a), serialize($b), serialize($a) <=> serialize($b) );
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1
Deprecated: Creation of dynamic property Foo::$x is deprecated in /in/iI994 on line 6 Deprecated: Creation of dynamic property Foo::$y is deprecated in /in/iI994 on line 7 Deprecated: Creation of dynamic property Foo::$y is deprecated in /in/iI994 on line 10 Deprecated: Creation of dynamic property Foo::$x is deprecated in /in/iI994 on line 11 string(38) "O:3:"Foo":2:{s:1:"x";i:1;s:1:"y";i:2;}" string(38) "O:3:"Foo":2:{s:1:"y";i:2;s:1:"x";i:1;}" int(-1)
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33
string(38) "O:3:"Foo":2:{s:1:"x";i:1;s:1:"y";i:2;}" string(38) "O:3:"Foo":2:{s:1:"y";i:2;s:1:"x";i:1;}" int(-1)

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